What is a Circuit?

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Contributors: MikeGrusin
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Overview

Welcome to circuits 101! One of the first things you’ll encounter when learning about electronics is the concept of a circuit. This tutorial will explain what a circuit is, as well as discuss voltage in further detail.

Picture of Circuit

A simple circuit, involving a button, an LED, and a resistor, built two different ways.

Suggested Reading

There are a few concepts you should have a good understanding of to help you get the most out of this tutorial.